software development

Staff Software Engineer - Smart Contracts Team

posted by: spj_bot

🔗 Senior EVM & Web3 Engineer - Enterprise Distributed Ledger

Location: Remote - US - Open to Europe if happy to overlap with EST

Compensation: Competitive

We are a fast-growing software company dedicated to supporting and servicing an open source, proof-of-stake platform that is EVM-compatible. This network is specifically built to meet the needs of enterprise and Web3 applications, prioritizing speed, security, and stability. We are seeking a seasoned Smart Contract Engineer to join our team, focusing on developing both the core Java services and the Web3 APIs (JS/TS) that process transactions across our network.

You will be a high-impact, hands-on programmer, spending approximately 80% of your time designing, coding, and testing. Your primary focus will be enhancing EVM compatibility and improving the developer experience (DevEx) for users migrating from other EVM chains. This includes both low-level transaction processing in Java and high-level API development for public consumption.

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Principal Software Engineer - EU

posted by: spj_bot

Principal Software Engineer - Blockchain Wallet Infrastructure

Location: Remote - Location: European Union (remote-first, office optional) Paris/ France is always preferred. Or as close as possible.

Compensation: $145K - $240K

We are a stellar team of leaders and experts building the backbone of blockchain wallet infrastructure for the next financial era, specializing in cryptography, security, and distributed systems. We are seeking a Principal Software Engineer to lead the design, development, and scaling of our core backend systems. This is a high-impact, leadership role focused on making key architectural decisions and ensuring our platform is fast, resilient, and secure under the high-stakes demands of financial workflows.

You will own mission-critical projects end-to-end, acting as a technical leader who drives engineering standards and the long-term vision. This role involves deep technical execution alongside strategic collaboration with product, security, and executive leadership to align technical roadmap with business goals.

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Principal Security Engineer

posted by: spj_bot

Principal Security Engineer - Blockchain Wallet Infrastructure

Location: Remote - Location: US or EU (remote-first, office optional). Must be in the US, not Canada or in the European Union. France or Paris or as close as possible, always preferred

Compensation: $220K - $300K

Join a stellar team of leaders and experts in blockchain technology, cryptography, and infrastructure to build the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Principal Security Engineer to lead security design and development across our entire platform. Reporting directly to the CISO, you will set the strategy to protect our high-stakes financial systems, fix vulnerabilities, and keep client wallets safe.

This is a strategic and highly technical role spanning the full security lifecycle. You will make security part of every layer of the stack, from architecture design to incident response. Beyond defense, you will champion secure development practices, mentor engineers, and represent the company's security posture to clients and the wider community.

Responsibilities:

Job Skills

incident response security design leadership mentorship security strategy equity security security policy systems languages secure coding risks manage threat modeling threat management penetration testing cloud security communication defense in depth web protocols architecture design reviews design security control security engineering safe security testing rust integrating european union stock options design architecture application security reliable industry standards best practices managed securely blockchain vulnerability management supply chain automated systems knowledge office space security architecture software development layer secure software standards iso cryptography infrastructure typescript applicable data security engineer coordinate enforcement secure networking stakes financial system audits
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Platform Engineer

posted by: spj_bot

Security DevOps Engineer - Crypto Social Infrastructure

Location: London, New York City (Office)

Compensation: $250K - $300K

We are a high-growth software development company of elite builders and proud contributors to the largest crypto social network globally, a platform that has generated over $600 million in revenue since March 2024. We are seeking a Security DevOps Engineer to join our team, focusing on building secure, scalable infrastructure for decentralized applications and redefining what’s possible in social finance.

You will play a critical, hands-on role in hardening our development and production environments. This role involves integrating security throughout our CI/CD pipeline, automating security scanning and monitoring, and working directly with development teams to ensure a strong overall security posture across our cloud and blockchain infrastructure.

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Infrastructure & DevOps Engineer

posted by: spj_bot

Infrastructure & DevOps Engineer - High-Performance Distributed Systems

Location: Remote - (Europe-friendly time zones preferred)

Compensation: $160K - $300K

We are reengineering blockchain infrastructure from first principles to make global digital markets as precise and dependable as physical systems. Built on a leading high-performance layer-1 network, our platform delivers deterministic execution, guaranteed inclusion, and low-latency performance. We are hiring an Infrastructure & DevOps Engineer to lead critical engineering efforts that drive the performance and scalability of our next-generation distributed systems.

You will join a highly proficient team of core engineers, focusing on Rust systems programming, infrastructure architecture (Kubernetes), and operational scripting. Your work will span the full stack, from bare metal to application interfaces, and will directly support our platform which connects the L1 network with advanced L2 extensions. You will drive high-quality, frequent code shipments, engage in deep architectural discussions, and apply a coherent system design philosophy to advance the industry.

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Backend Engineer - Indexing

posted by: spj_bot

Backend Data Engineer - Real-Time Crypto Analytics Infrastructure

Location: London, New York City (Office)

Compensation: $250K - $300K

We are a high-growth software development company of elite builders, redefining what's possible and proud contributors to the largest crypto social network globally. We are seeking a Backend Engineer focused on data to design and scale our real-time data infrastructure at the forefront of crypto and social finance. This role is for a self-starter who thrives on solving complex, high-throughput data challenges in a fast-paced environment.

You will own the end-to-end architecture and operation of our real-time analytics pipeline, ensuring low-latency insights are always available to internal and external stakeholders. This role requires interacting directly with high-throughput blockchain infrastructure and solving significant challenges related to data consistency, scale, and performance.

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Solana Program Engineer

posted by: spj_bot

Solana-Focused Frontend Engineer - Crypto Social Finance

Location: Remote - preference is NYC/LDN but open to remote candidates if they're an exceptional fit.

Compensation: $250K - $300K

We are a high-growth software development company of elite builders, redefining what's possible and proud contributors to the largest crypto social network globally. We are seeking a Solana-Focused Frontend Engineer to play a critical role in building and scaling cutting-edge platforms at the forefront of crypto and social finance, delivering high-performance, user-centric applications across web and mobile.

You will be instrumental in bridging the gap between our smart contract infrastructure and the user interface, working in an environment where speed, ownership, and innovation are paramount. You will own the front-end implementation of new on-chain features, optimize performance, and ensure a seamless user experience for real-time interactions.

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Principal Software Engineer - Smart Contracts Team

posted by: spj_bot

Senior/Lead EVM Engineer - Distributed Ledger Optimization

Location: Remote - US

Compensation: Competitive

We are a fast-growing software company committed to supporting, developing, and servicing an open source, proof-of-stake, EVM-compatible platform. This decentralized network is built for enterprise and Web3 applications, prioritizing speed, security, and stability. We are seeking a seasoned EVM Engineer to join our Smart Contracts team and drive the performance and optimization of our core native services (Java) and Web3 services (JS/TS).

You will be a high-impact contributor, spending approximately 80% of your time designing, coding, and testing core components. Your focus will be on the execution layer, specifically transforming network node states, processing transaction bytes, and exposing critical network data. This includes innovating on compiler and optimization algorithms, enhancing EVM features, and contributing to open-source code clients.

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Web3 DevOps and Infrastructure Engineer

posted by: spj_bot

DevOps Engineer - Stablecoin Platform Infrastructure

Location: Remote - US based (Would consider South America/Canada if can work EST timezones)

Compensation: $170K - $200K

We are a stablecoin platform for builders, providing a superior digital-dollar building block that developers can extend to create customizable, application-specific stablecoins in minutes. Our platform empowers businesses to monetize their digital dollar use cases and maintain control over their money tech stack, without being burdened by operational heavy-lifting. We are seeking an experienced DevOps Engineer to play a key role in ensuring the security, reliability, and scalability of our systems through automation, monitoring, and encryption-first architectures.

You will be responsible for building, scaling, and securing the cloud infrastructure that underpins our stablecoin platform. This position requires hands-on expertise with cloud-native security best practices, a focus on performance optimization, and strong proficiency in automating deployments across a distributed system environment.

Key Responsibilities:

Job Skills

distributed environment terraform configuration management reliability engineering reliability automation containerized security policy equity scalable jenkins github high availability heavy lifting mental health automate distributed systems cybersecurity communication cloud native automating operational site reliability engineering safe prometheus chef collaborate development budget reliable best practices managed securely collaboration blockchain kubernetes grafana automated building block scripting problem solving infrastructure as code scalability devops performance optimization software development product teams use cases collaborative platform as a service support engineering infrastructure puppet encryption containerization application specific english applicable data delivery focus bash e ansible cloud infrastructure manage distributed system
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React Native Engineer (NYC or LND) x4

posted by: spj_bot

React Native Engineer - High-Growth Crypto Social Network


Location: London, New York City (Office)

Compensation: $250K - $300K

We are a team of elite builders and a high-growth software development company known for redefining what's possible in Web3. We are proud contributors to one of the largest crypto social networks globally, where we are actively building for the future. We are looking for a highly skilled React Native Engineer to play a crucial role in shaping the future of this exciting, fast-moving venture.

You will be responsible for the end-to-end development and deployment of mobile applications that support a rapidly scaling crypto social platform. This role requires a strong focus on execution, speed, and quality, working in an environment that values pushing technical boundaries and delivering innovative products to a global user base.

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